Historical Visitor Statistics

 

As a national user facility, ARM is required to report facility use for actual visitors and for active user research computer and Archive accounts and only unique scientific users will be counted. A scientific user is defined as a member of the scientific community and infrastructure who is using ARM Facilities or data to perform peer-reviewed science and research. For the ARM Infrastructure, this includes the scientists and engineers who are involved in the development of synthesis products, value-added products, instrument performance analysis, and uncertainty quantification. Unique scientific users are defined as a single use of ARM’s on-site assets, off-site services, or data services during the defined reporting period.

Beginning in fiscal year 2013, the approach used to count scientific users for ARM was revised to align with other DOE Office of Science user facilities. ARM moved away from the OPSMAX metric in FY2019 and currently uses a data availability metric that gauges what data is expected to be available in the archive against what is available. Please contact us if there are any questions related to the information presented here about the facility statistics.

Table 1. Facility Users by Year

Fiscal Year On Site Remote Data Total
2020 57 203 741 1,001
2019 183 52 745 980
2018 377 86 710 1,173
2017 219 220 688 1,127
2016 100 203 758 1,061
2015 104 423 673 1,200
2014 160 454 682 1,296
2013 145 457 381 983

Table 2. Facility Users by Year and Site*

Table 2 follows reporting guidance provided in FY2009 for counting ARM users. At that time, the new computations were applied to previous quarterly reports and user statistics were recalculated to count only scientific users.

*Scientific user numbers appear first; total number of users appear in the parentheses.

Fiscal Year ARM Aerial
Facility
ARM Mobile
Facility
Data Mgt
Facility
North Slope
of Alaska
Southern
Great Plains
Tropical
Western
Pacific
Archive Totals
2012
4 (4)
125 (201)
54 (125)
55 (101)
120 (240)
38 (52)
837 (946)
1,233 (1,669)
2011
+ (+)
175 (234)
48 (115)
41 (81)
149 (327)
34 (62)
770 (845)
1,217 (1,664)
2010
+ (+)
32 (52)
27 (83)
33 (71)
60 (123)
22 (43)
744 (813)
918 (1,185)
2009
+ (+)
20 (41)
27 (76)
30 (69)
62 (151)
40 (53)
744 (819)
923 (1,209)
2008
+ (+)
254 (273)
28 (56)
56 (101)
55 (108)
25 (41)
588 (651)
1,006 (1,230)
2007
+ (+)
657 (707)
25 (45)
28 (60)
89 (198)
29 (39)
570 (642)
1,398 (1,691)
2006
+ (+)
20 (53)
24 (41)
31 (67)
45 (170)
32 (59)
487 (554)
639 (944)
2005
+ (+)
50 (79)
18 (24)
43 (136)
109 (209)
42 (95)
448 (523)
710 (1,066)

+ Data for the ARM Aerial Facility were not collected during this time.

Table 3. Visitor Days by Year and Site

Every visitor to the ARM Climate Research Facility must submit a request to visit. From that request, the following statistics in Table 3 have been summarized and the total number of visitors days are recorded.

Fiscal Year North Slope of
Alaska
Southern Great
Plains
Tropical Western
Pacific
ARM Mobile
Facility & Off-Site
Total
2011
470
2,605
667
2,983
6,725
2010
522
332
331
415
1,600
2009
541
606
203
987
2,337
2008
1,511
835
223
2,799
5,368
2007
312
1,676
212
4,729
6,929
2006
473
496
466
839
2,274
2005
929
1,530
531
941
3,931
2004
1,333
895
363
0
2,591
2003
1,025
1,487
368
0
2,880
2002
995
796
0
0
1,791
2001
1,172
1,411
0
0
2,583
2000
370
465
0
0
835
Total
9,653
13,134
3,364
13,693
39,844